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		Calculate molar mass | 
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| Calculations: Formula: Cl2O7 Molar Mass: 182.899 g/mol 1g=5.46749845543169E-03 mol Percent composition (by mass): Element Count Atom Mass %(by mass) Cl 2 35.453 38.77% O 7 15.999 61.23%  | 
		
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